Observation information
- date-obs: 2020-08-24
- time-obs: 15:29:25.254800000
- date-end: 2020-08-26
- time-end: 04:13:28.189300000
- obs_id: A09_095T02_9000003840
- exposure: 68668.9938659
- sourceid: LMC X-2
- observer: vivek
- ra_pnt: 80.11684
- dec_pnt: -71.96481
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_095T02_9000003840cztM0_level2.fits
| modeM0/AS1A09_095T02_9000003840cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,131,016,320 | 1,202,060,160 |
| Size | 1.1 GB
| 1.1 GB
|
| Events in quadrant A | 7,167,076 | 7,665,351 |
| Events in quadrant B | 6,804,846 | 7,685,320 |
| Events in quadrant C | 6,768,818 | 7,218,370 |
| Events in quadrant D | 5,685,148 | 6,016,389 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 185 | 0 |
| B | 0 | 185 | 0 |
| C | 0 | 185 | 0 |
| D | 0 | 185 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2320 | 0 |
| B | 0 | 2320 | 0 |
| C | 0 | 2320 | 0 |
| D | 0 | 2320 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 251131 | 0 |
| B | 0 | 258747 | 0 |
| C | 0 | 278231 | 0 |
| D | 0 | 405200 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 114119 | 1674 | 1.466890% |
| B | 114119 | 2486 | 2.178428% |
| C | 114119 | 5051 | 4.426082% |
| D | 114119 | 14778 | 12.949640% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 132244 | 114089 | 0 | 0 | 0.00% | 0.00% |  |
| B | 132244 | 114097 | 0 | 0 | 0.00% | 0.00% |  |
| C | 132244 | 114078 | 0 | 0 | 0.00% | 0.00% |  |
| D | 132244 | 113781 | 0 | 0 | 0.00% | 0.00% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 29 | 5990 | 9.32 | 1869 | 1765 | 453.2 |
| A | 7 | 110 | 5527 | 8.3 | 1869 | 1765 | 453.2 |
| A | 9 | 19 | 5356 | 7.92 | 1869 | 1765 | 453.2 |
| B | 2 | 9 | 5357 | 10.3 | 1806 | 1733 | 351.9 |
| B | 5 | 128 | 4517 | 7.91 | 1806 | 1733 | 351.9 |
| B | 5 | 255 | 4482 | 7.81 | 1806 | 1733 | 351.9 |
| C | 12 | 241 | 4666 | 6.61 | 1791 | 1685 | 451.2 |
| C | 3 | 126 | 4606 | 6.47 | 1791 | 1685 | 451.2 |
| C | 2 | 191 | 4585 | 6.43 | 1791 | 1685 | 451.2 |
| D | 3 | 14 | 4079 | 6.07 | 1621 | 1485 | 427.4 |
| D | 10 | 189 | 4063 | 6.03 | 1621 | 1485 | 427.4 |
| D | 6 | 67 | 3988 | 5.86 | 1621 | 1485 | 427.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |